We have moved to pixelsmith as the default engine. It is node based and should support your sprites. Any other engines must be installed outside of spritesmith. This will lead to cleaner and faster installations.

We have moved to binary-tree as the default algorithm. We changed this to give the best possible packing out of the box. If you were using top-down as the default, please specify it in your configuration.

We have moved the cssClass option for the css template to cssSelector. This makes it more semantically appropriate and eaiser to find.